Suspicious Windows Firewall Disabled via netsh by BlackByte Ransomware

ATT&CK techniques

Recon
Resource Dev
Initial Access
Execution
Persistence
Priv Esc
Defense Evasion
Cred Access
Discovery
Lateral Movement
Collection
C2
Exfiltration
Impact

What it detects

This rule detects netsh disabling all Windows Firewall profiles, a defense evasion action used by BlackByte ransomware to remove network restrictions before spreading. Turning off all firewall profiles is rarely legitimate on managed endpoints.

Reporting behind it

Related detections9 linkedT1686 — drag to rearrange

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Malicious Windows Firewall Disable via Netsh

OpenSSH Server Firewall Configuration on Windows - Firewall (via firewall-as)

Suspicious Firewall Rule Added Using PowerShell or CMD (via firewall-as)

Suspicious Firewall Rule Masquerading as CloudExperienceHost via netsh

Suspicious Firewall Rule Masquerading As Windows Update (via process_creation)

Suspicious Windows Firewall Disabled via netsh by BlackByte Ransomware

Pivot detection · T1686 · 9 related

Detection content is published as a reviewed draft. Tune thresholds and exclusions against your own telemetry before enabling this rule for alerting.

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